Tucson , Arizona -LRB- CNN -RRB- -- Arizonans paid tribute Friday morning to the federal judge killed in the deadly shooting rampage last weekend in Tucson .

U.S. District Judge John Roll was one of six people gunned down Saturday when he dropped by U.S. Rep. Gabrielle Giffords ' meet-and-greet in a supermarket parking lot .

The funeral service for the revered 63-year-old jurist was held at St. Thomas the Apostle Parish in Tucson .

Roll 's service came a day after a memorial was held for Christina Green , 9 , the youngest victim of the mass shooting . In addition to the six deaths , 13 others , including Giffords , were wounded in the gunfire .

Arizona Sens. John McCain and Jon Kyl , both Republicans , said Friday they will introduce legislation to name a new federal courthouse in Yuma after Roll .

The courthouse is about to be built , and Roll , as Arizona 's chief federal judge , recently approved the plans for the building , according to Brooke Buchanan , an aide to McCain .

President Barack Obama described Roll as `` the hardest-working judge '' within the 9th Circuit in a speech Wednesday night at a public memorial at the University of Arizona .

McCain called Roll `` a man of great qualities and character . '' He had recommended him for the federal bench 20 years ago .

Chief Justice John Roberts said Roll was `` a wise jurist who selflessly served Arizona and the nation with great distinction , as attorney and judge , for more than 35 years , '' McCain said .

President George H.W. Bush appointed Roll , a Pennsylvania native , to the bench , and he rose to become the state 's chief federal judge .

Two years ago , he received death threats after ruling that a $ 32 million civil rights lawsuit filed by illegal immigrants against a rancher could proceed , a ruling that sparked outrage from radio talk-show hosts and others .

Roll was placed under protection by federal marshals for several weeks . No one was charged in the case .

The jurist also received criticism recently when he asked to delay bringing felons to trial in Tucson , citing a judicial emergency . He said in a November letter to the 9th U.S. Circuit Court of Appeals that the ever-increasing number of federal felony arrests had overwhelmed his court .

Roll also had been assigned to hear a case on ethnic studies , according to the lead attorney in the case , Richard Martinez . The case , out of Tucson , involves a new law banning certain ethnic studies programs in public schools .

Tucson resident Jared Lee Loughner , 22 , is facing federal charges in Saturday 's attack .

Police said Loughner targeted Giffords and had complained about the lawmaker for years after apparently getting a response he did n't like to a question he asked her at a 2007 event .

The shooting set off a political firestorm across the country , with some pundits saying that extreme partisan politics played a role in the mass killing .

On Thursday , family , friends , classmates and hundreds of mourners filled St. Elizabeth Ann Seton Catholic Church in Tucson for the funeral service for Christina Green , the 9-year-old .

All of them passed under a giant American flag that was recovered in the aftermath of the terror attacks in New York on September 11 , 2001 -- the day Christina was born .

Dozens of other mourners paid their respects by standing outside the church , which was filled to capacity .

Obama noted Wednesday that Christina was beginning to discover the political system -- something that she saw `` through the eyes of a child . ''

`` I want us to live up to her expectations . I want our democracy to be as good as Christina imagined it . I want America to be as good as she imagined it , '' Obama said . `` All of us -- we should do everything we can do to make sure this country lives up to our children 's expectations . ''

CNN 's Ted Barrett contributed to this story .

@highlight

NEW : U.S. senators propose naming a planned federal courthouse after Judge Roll

@highlight

Roll 's funeral comes a day after the service for the youngest victim

@highlight

Roll was Arizona 's chief federal judge

@highlight

Six people were killed in the Arizona shooting rampage